Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Missoula, MT

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FNUS55 KMSO 220937
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Fire Weather Planning Forecast for Wrn Montana and N Cntrl Idaho
National Weather Service Missoula MT
337 AM MDT Sun Apr 22 2018


.DISCUSSION...

Idaho: Besides a winter-type Yellowstone low pressure system that will
bring snow to southwest Montana by Monday morning, the trend for the
upcoming week will be warmer and drier. Weak to moderately strong
thermal belts will develop as the ridge moves in place. A disturbance
will move through Wednesday and Wednesday night to bring easterly winds
and milder night-time temperatures. Valley humidity recovery will be
good with cool low temperatures at night. Thunderstorms continue to be
possible by next weekend.

Montana: A winter-type Yellowstone low pressure system that will bring
snow to southwest Montana by Monday morning with 0.3 to 0.5 inches of
rain expected Sunday night through Monday in southwest Montana. Beyond
that, the trend for the upcoming week will be warmer and drier. A
disturbance will move through Wednesday and Wednesday night to bring
easterly winds and milder night- time temperatures. Valley humidity
recovery will be good with cool low temperatures at night. Thunderstorms
continue to be possible by next weekend.


View Fire Weather Briefing videos on our YouTube channel
at https://www.youtube.com/NWSMissoula

IDZ102-103-230945-
Palouse/Hells Canyon-Clearwater/Nez Perce-
237 AM PDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....55-65 valleys and 45-55 ridges.
* Min Humidity........22-32 percent valleys and 37-47 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy then becoming partly cloudy.
  Slight chance of rain and snow. Snow level 4000 feet.
* Min Temperature.....30-35.
* Max Humidity........81-91 percent valleys and 75-85 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............North 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Partly cloudy. Slight chance of snow. Slight
  chance of snow showers in the afternoon. Snow level 5000 feet.
* Max Temperature.....60-65 valleys and 48-58 ridges.
* Min Humidity........22-32 percent valleys and 34-44 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northeast 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 35-45. Highs 65-75. East winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 40-50. Highs 65-75. Diurnal terrain
winds to 10 mph.
.THURSDAY...Mostly clear. Lows 40-50. Highs 70-80. East winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 40-50. Highs 75-85.
.SATURDAY...Cooler. Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 45-55. Highs 65-75.

$$

MTZ104-105-230945-
Kootenai-Flathead/Glacier Park-
337 AM MDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Mostly cloudy.
* Max Temperature.....50-60 valleys and 40-45 ridges.
* Min Humidity........24-34 percent valleys and 34-44 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............West 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy.
* Min Temperature.....25-30.
* Max Humidity........81-91 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............Northeast 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Partly cloudy. Slight chance of snow.
* Max Temperature.....55-65 valleys and 40-50 ridges.
* Min Humidity........19-29 percent valleys and 32-42 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 30-40. Highs 60-70. Southeast winds
5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 40-50. Highs 60-70. South winds
10-15 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75. East winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 40-50. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 40-50.
Highs 65-75.

$$

MTZ106-108-230945-
West Lolo-East Lolo-
337 AM MDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....55-60 valleys and 45-55 ridges.
* Min Humidity........22-32 percent valleys and 30-40 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............West 5-10 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of snow and chance of
  rain. Snow level 4000 feet.
* Min Temperature.....30-35.
* Max Humidity........77-87 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 5-10 mph.
*     Ridge Top............Northeast 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of snow. Slight chance
  of snow showers in the afternoon. Snow level 4500 feet.
* Max Temperature.....50-60 valleys and 40-50 ridges.
* Min Humidity........22-32 percent valleys and 35-45 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Warmer. Mostly clear. Lows 30-40. Highs 65-75. Southeast
winds 5-10 mph.
.WEDNESDAY...Mostly clear. Lows 40-50. Highs 65-75. South winds
5-10 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 70-80. East winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 40-50. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 40-50.
Highs 65-75.

$$

MTZ107-230945-
Salish and Kootenai Reservation-
337 AM MDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Partly cloudy.
* Max Temperature.....55-60 valleys and 45-50 ridges.
* Min Humidity........19-29 percent valleys and 26-36 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph late in
      the afternoon.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy.
* Min Temperature.....35-40 valleys and 25-30 ridges.
* Max Humidity........79-89 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............Northeast 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Slight chance of rain and
  snow. Snow level 4500 feet.
* Max Temperature.....55-60 valleys and 40-45 ridges.
* Min Humidity........17-27 percent valleys and 31-41 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............East 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TUESDAY...Mostly clear. Lows 30-40. Highs 65-75. East winds 5-10 mph.
.WEDNESDAY...Partly cloudy. Lows 35-45. Highs 65-75. South winds
5-10 mph.
.THURSDAY...Mostly clear. Lows 40-50. Highs 70-80. East winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 40-50. Highs 75-85.
.SATURDAY...Mostly clear. Slight chance of rain showers. Lows 40-50.
Highs 70-80.

$$

MTZ109-230945-
Bitterroot-
337 AM MDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Partly cloudy. Snow level 5500 feet.
* Max Temperature.....60-65 valleys and 45-50 ridges.
* Min Humidity........18-28 percent valleys and 26-36 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Becoming upslope/upvalley 4-8 mph in the
      afternoon.
*     Ridge Top............Northwest 5-10 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Chance of rain and snow. Snow
  level 4500 feet.
* Min Temperature.....25-35.
* Max Humidity........81-91 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 5 mph.
*     Ridge Top............North 5-10 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...20 percent.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Chance of snow and rain in the
  morning, then chance of rain showers and snow showers in the
  afternoon. Snow level 5500 feet.
* Max Temperature.....50-55 valleys and 40-50 ridges.
* Min Humidity........23-33 percent valleys and 36-46 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............Northeast 5-10 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...10 percent.

.TUESDAY...Warmer. Mostly clear. Lows 25-35. Highs 65-75. East winds
5-10 mph.
.WEDNESDAY...Mostly clear. Lows 35-45. Highs 65-75. South winds
5-10 mph.
.THURSDAY...Mostly clear. Lows 35-45. Highs 65-75. East winds
10-15 mph.
.FRIDAY...Mostly clear. Lows 35-45. Highs 70-80.
.SATURDAY...Partly cloudy. Slight chance of rain showers and
thunderstorms. Lows 35-45. Highs 65-75.

$$

MTZ110-111-230945-
Deerlodge/West Beaverhead-East Beaverhead-
337 AM MDT Sun Apr 22 2018

.TODAY...
* Sky/Weather.........Mostly cloudy. Snow level 7000 feet.
* Max Temperature.....55-65 valleys and 50-55 ridges.
* Min Humidity........27-37 percent.
* 20-Foot Winds.......
*     Lower Elevation......Variable less than 7 mph.
*     Ridge Top............West 5-10 mph.
* Haines Index........3 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...0 percent.

.TONIGHT...
* Sky/Weather.........Mostly cloudy. Rain and snow. Snow level 6500
  feet.
* Min Temperature.....25-35.
* Max Humidity........86-96 percent.
* 20-Foot Winds.......
*     Lower Elevation......North 10-20 mph decreasing to 5-10 mph after
      midnight.
*     Ridge Top............North 5-15 mph.
* LAL.................1.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
  Beaverhead...and 80 percent in the East Beaverhead.

.MONDAY...
* Sky/Weather.........Mostly cloudy. Snow. Chance of rain showers
  in the afternoon. Snow level 5500 feet.
* Max Temperature.....40-45 valleys and 33-43 ridges.
* Min Humidity........43-53 percent valleys and 51-61 percent
  ridges.
* 20-Foot Winds.......
*     Lower Elevation......Northeast 5-15 mph.
*     Ridge Top............Northeast 5-15 mph.
* Haines Index........2 very low.
* LAL.................1.
* CWR (> 0.10 Inch)...40 percent in the Deerlodge/West
  Beaverhead...and 60 percent in the East Beaverhead.

.TUESDAY...Warmer. Mostly clear. Lows 20-30. Highs 55-65. East winds
5-15 mph.
.WEDNESDAY...Mostly clear. Lows 30-40. Highs 60-70. South winds
5-10 mph.
.THURSDAY...Mostly clear. Lows 30-40. Highs 60-70. Northeast winds
5-15 mph.
.FRIDAY...Mostly clear. Lows 30-40. Highs 60-70.
.SATURDAY...Partly cloudy. Slight chance of rain showers. Lows 35-45.
Highs 60-70.

$$



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